An armed robber bundled up against the cold, conveniently concealing his appearance, struck a bank Monday morning in Brooklyn Center and remains at large, authorities said.

The holdup occurred about 9:20 a.m. at Bremer Bank on Brooklyn Boulevard between Hwy. 100 and Bass Lake Road, according to the FBI.

The gunman robbed three tellers of cash and then fled on foot, the FBI added.

There was no specific physical description of the suspect. He was wearing a black winter-weather mask over his face, along with a dark-colored jacket with a hood, black nylon pants, gray gym shoes and black gloves.

Anyone with any information about this crime is asked to contact the FBI at 763-569-8000 or Brooklyn Center police at 763-569-3333. A reward is being offered for information leading to an arrest.